Calcined Kaolin Quality A: Al203 43% min Fe2O3: 1.5% max Whiteness: 90% min Size: 325,600,800,1250,2500,4000,6000mesh Quality B:Al2O3: 44-46% SiO2: 51-53% Fe2O3:0.4% max B.D. 2.45g/ccm min Refractoriness: 1770 Size: 0-1-3-5-8 or 0-30mm or 16x30 mesh, -30mesh, or as request